…First was a call to the editor. Youth voice, which was heard simultaneously and joy, and pride, and impatience to share all these feelings said that we have built and successfully tested an unusual inflatable boat. Pulled out of the backpack, it is a rectangular panel: inflated “frog” becomes a raft (a large mattress); laced or strapped on end edges turns into a boat capable of taking three people and cargo. And all of this is made of a thin fabric “silverfish” with a rubber adhesive.FEEDING BY… PHONE
Aquarists are often literally confined to the house: indeed, even for a few days can’t leave the fish without food. Meanwhile, feed the fish and you can remotely, via an ordinary house telephone. The device consists of included in the telephone line for more calls, firing pin which hits the box with the trellised bottom, Read more…










